*{
    margin: 0;
    padding: 0;
  }

/*导航*/
/* header部分的样式 */
.header{
    background-color:#fee300;
    height: 60px;
    color: white;
  }
  .content{
    width: 90%;
    margin: 0 auto;/*盒子的左右居中*/
    overflow: hidden;/*清除浮动*/
  }
  .header-left{
    float: left;
    width: 30%;
  }
  .header-left img{
    height: 40px;
    margin-top: 10px;
    float: left;
  }
 
  .header-mid{
    float: left;
    width: 50%;
  }
  .header-mid ul{
    list-style: none;
    overflow: hidden;/*清除浮动的最有效的方式*/
  }
  .header-mid li{
    float: left; 
    width: 10%;
    text-align: center;
    font-size: smaller;
  }
  p{
    /* text-decoration: none; */
    line-height: 60px;
  }

  .header-mid li a{
    color: black;
    text-decoration: none;
    line-height: 60px;
  }

  .header ul li a:hover{
    list-style: square inside;
    background-color: black;
    color: #fee300;
  }

/*class为active的li元素*/
.header-mid li.active a{
    color: black;
    font-weight: bold;
  }

  .header-right img{
    height: 40px;
    margin-top: 10px;
    float: left;  
    /* display: inline; */
  }

  .header-right ul{
    list-style: none;
    overflow: hidden;
    display: inline;
  }

  .header-right li{
    float: left; 
    width: 5%;
    text-align: right;
    font-size: smaller;
    display: inline;
  }
  

  .header-right li a{
    color: black;
    text-decoration: none;
    line-height: 60px;
  }

/* 
  .header-right{
    float: right;
    width: 5%;
  }

  

  
  

   */





 
  